There are quite a few RV sites at Shooting Star Casino in Mahnomen and they offer full hookups!  We stayed at site 19, shown in the photo.  Although the sites are close together, there were quite a few empty sites so we felt like it was semi-private.  The cost was about $25 per night so definitely a great deal for full hookups.  There is a picnic table at each site and the RV park is pet friendly.  We spent a lot of our time in the casino while we were here so our time in the camper was limited but while we slept, we didn't here much noise.